Data processing method and data processing apparatus

(19)

(11)

EP 1 471 503 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.10.2005 Bulletin 2005/42

(43)	Date of publication A2:
	27.10.2004 Bulletin 2004/44

(21)	Application number: 04251923.1

(22)	Date of filing: 31.03.2004

(51)	International Patent Classification (IPC)⁷: G10L 19/14

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

22.04.2003 JP 2003117209

(71)	Applicant: FUJITSU LIMITED
	Kawasaki-shi, Kanagawa 211-8588 (JP)

(72)	Inventors:
	Kanayama, Yasutaka Fujitsu Network Tech. Ltd. Yokohama-shi Kanagawa 222-0033 (JP) Sato, Teruyuki Fijitsu Limited Kawasaki-shi Kanagawa 211-8588 (JP)

(74)	Representative: Hitching, Peter Matthew et al
	Haseltine Lake, Imperial House, 15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)

(54)	Data processing method and data processing apparatus

(57) A CODEC (1A) which is capable of supporting both a TFO operation and tandem operation. When the TFO condition is shifted to the tandem connecting condition, a TFO secondary determining section (10A) outputs, to an encoding section (5A), an encoder resetting instruction and a transmitting instruction of a homing signal for resetting a remote CODEC which is used for decoding the compressed code data output from the encoding section (5A). Also a signal noise alleviation processing section (4A) detects a frame synchronization bit and performs a signal noise alleviation process from the leading area of the encoding processing frame and outputs the result to the encoding section.

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